The MulchControl system includes an adjustable MulchControl baffle near the discharge chute and fixed baffles to control the flow of material under the deck. The MulchControl handle is on top of the mower deck and is used to open and close the MulchControl baffle. When the MulchControl baffle is open, most of the material flows freely out of the discharge deflector or into a material collection system. When the MulchControl baffle is closed, material stays within the deck and gets chopped into mulch and deposited in the turf. While in the side discharge mode, MulchControl still mulches about one third of the material. Therefore, the side discharge mode is essentially a partial mulch mode. This can be an advantage when side discharging or bagging, as it helps to reduce the amount of material being discharged When bagging with MulchControl, the MulchControl baffle can be opened or closed with the Power Flow blower installed. The Power Flow blower runs without material when the baffle is closed. Product Dimensions Weight 13.328 lb Height 6 in Width 13 in Length 21.2 in Volume 12.478 gal Model Compatibility: S240 X330 X350 X370 X380 X384 X390 X394 X570 X580 X584 X590 X710 X730 X734 X738 X739 X750 X754 X758 X940 X948 X949 Z325E Z330M Z330R Z355E Z355R Z365R Z515E Z525E Z530M Z535M Z540M Additional models may not be listed.